Deforestation can lead to which ecological issue?

Deforestation is the destructions of trees to make the land available for other uses. Deforestation leads serious ecological issues, amon which you can count: 1) global climante change, due to the trees are main part of the cycle of two green house gases: CO2 and water vapor. Trees absor huge amounts of CO2 emissions from fossil fuels and contribute to water vapor exchange. 2) Water scarcity: trees help to conserve humidity (keeping lower temperatures) and to the retention of water in the soils, when trees dissapear the sources of water decrease; 3) soill erotion: the roots of the trees help to keep the soil firm, and 4) species extinction: trees are houses four thousands of animals and organisms, with less trees and less water some species get lost.